CN212359971U - Heavy LNG gas cylinder's for card from turbocharging system - Google Patents
Heavy LNG gas cylinder's for card from turbocharging system Download PDFInfo
- Publication number
- CN212359971U CN212359971U CN202020847681.6U CN202020847681U CN212359971U CN 212359971 U CN212359971 U CN 212359971U CN 202020847681 U CN202020847681 U CN 202020847681U CN 212359971 U CN212359971 U CN 212359971U
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- Prior art keywords
- pipe
- pressurization
- pressure
- lng
- self
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- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003949 liquefied natural gas Substances 0.000 description 41
- 239000007789 gas Substances 0.000 description 31
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a heavily block from turbocharging system with LNG gas cylinder, its characterized in that: an air return port, a first liquid outlet and a second liquid outlet are arranged on one end face of the LNG cylinder; the self-pressurization system comprises an air supply pipeline and a self-pressurization pipeline; the self-pressurization pipeline comprises a first pressurization pipe, a finned pipe and a second pressurization pipe which are sequentially connected, one end of the first pressurization pipe is connected with the second liquid outlet, and one end of the second pressurization pipe is connected with the air return port; the middle part of the second booster pipe is provided with a booster pump; and a pressure measuring branch pipe is further arranged on the second pressure charging pipe and close to the air return port, a pressure sensor used for detecting the gas pressure in the second pressure charging pipe is arranged on the pressure measuring branch pipe, and the pressure sensor is electrically connected with the control part of the pressure charging pump. By adopting the self-pressurization system, the LNG cylinder can be automatically pressurized when the pressure is insufficient, the pressurization speed is high, the effect is good, and the use is safer.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field, especially a heavily block from turbocharging system with LNG gas cylinder.
Background
Due to the characteristics of LNG (liquefied natural gas) heavy trucks, such as low emissions and reduced greenhouse effect, the LNG heavy trucks are becoming increasingly popular and widespread. However, when the heavy truck is driven, due to reasons such as ambient temperature and road conditions, the problem that the pressure in the LNG gas cylinder is insufficient although sufficient liquid LNG is still in the LNG gas cylinder is caused, and at this time, the power of the engine is reduced due to insufficient gas supply of the LNG gas cylinder, and even the heavy truck cannot continue driving. In the prior art, although an LNG gas supply system also has a pressurization structure, the LNG gas supply system can only be stopped and manually pressurized after the normal work of an engine is influenced by insufficient gas supply, the problems of low pressurization speed and influence on the normal running of a vehicle exist, and if the problems occur on a highway and the like, the potential safety hazard also exists in the parking operation of personnel.
SUMMERY OF THE UTILITY MODEL
To the problem in the background art, the utility model provides a along with heavily blocking from turbocharging system with LNG gas cylinder to solve prior art, heavily block when LNG gas cylinder air feed is not enough, can not automatic, the problem of quick pressure boost in order to guarantee engine normal operating.
The utility model aims at realizing through the technical scheme, it is including:
the utility model provides a heavily block from turbocharging system with LNG gas cylinder, its innovation point lies in: an air return port, a first liquid outlet and a second liquid outlet are arranged on one end face of the LNG cylinder, the air return port is arranged at the upper part of the LNG cylinder, and the first liquid outlet and the second liquid outlet are both arranged at the lower part of the LNG cylinder; the self-pressurization system comprises an air supply pipeline and a self-pressurization pipeline; one end of the air supply pipeline is connected with the first liquid outlet, and the other end of the air supply pipeline is connected with an air inlet of an engine of the heavy truck; the self-pressurization pipeline comprises a first pressurization pipe, a finned pipe and a second pressurization pipe which are sequentially connected, one end of the first pressurization pipe is connected with the second liquid outlet, and one end of the second pressurization pipe is connected with the air return port; the middle part of the second booster pipe is provided with a booster pump; a pressure measuring branch pipe is further arranged on the second booster pipe and close to the air return port, a pressure sensor for detecting the pressure of the gas in the second booster pipe is arranged on the pressure measuring branch pipe, and the pressure sensor is electrically connected with the control part of the booster pump; the finned tube is used for gasifying liquid LNG flowing through the finned tube; the booster pump can connect or disconnect the air passage of the second booster pipe, and can quickly pump the gas in the second booster pipe back to the LNG gas cylinder.
As an optimization, the self-pressurization system further comprises a connecting pipe, wherein an air inlet end of the connecting pipe is connected with the second pressurization pipe, an air outlet end of the connecting pipe is connected with the air supply pipeline, the air inlet end is arranged near the air return port, and the air outlet end is arranged near the first liquid outlet; and a single-phase pressure valve is arranged in the middle of the connecting pipe.
Preferably, the first pressure increasing pipe is further provided with a pressure regulating valve.
Preferably, the first pressure increasing pipe is provided with a first stop valve, the second pressure increasing pipe is provided with a second stop valve, the first stop valve is close to the second liquid outlet, and the second stop valve is close to the return air inlet.
Preferably, a safety valve is further arranged on the second pressure increasing pipe.
Due to the adoption of the technical scheme, the utility model discloses following advantage has: because the atmospheric pressure in second booster pipe and the LNG gas cylinder is monitored at any time through pressure sensor, and with monitor signal transfer to the control part of force pump, when pressure drop to a lower value, the booster pump starts promptly and communicates the air flue of second booster pipe, at this moment, liquid LNG in the LNG gas cylinder gets into the finned tube through first booster pipe and gasifies, the LNG gas after the gasification is pumped back the pressurization in the LNG gas cylinder by the force pump fast again, until recovering the atmospheric pressure in the LNG gas cylinder to normal value, the booster pump stop work this moment, no longer continue to be the pressurization of LNG gas cylinder, until next pressure is not enough. Therefore, the LNG cylinder can continuously keep normal pressure to supply gas for the engine, meanwhile, due to the arrangement of the booster pump, the boosting speed is greatly improved, the boosting effect is good, the starting and stopping times of the boosting system are reduced, and the normal work of the LNG cylinder is further ensured; on the other hand, the manual operation of parking is not needed, the labor intensity is reduced, and the safety is also improved.
Drawings
The drawings of the present invention are described below.
Fig. 1 is a schematic view of the installation structure of the present invention.
In the figure: 1. an LNG cylinder; 2. a gas supply line; 3. an engine; 4. a first booster duct; 5. a finned tube; 6. a second booster duct; 7. a booster pump; 8. a pressure measuring branch pipe; 9. a pressure sensor; 10. a connecting pipe; 11. a single-phase pressure valve; 12. a pressure regulating valve; 13. a first shut-off valve; 14. a second stop valve; 15. a safety valve.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, in the self-pressurization system of the LNG cylinder for heavy trucks, a gas return port, a first liquid outlet and a second liquid outlet are arranged on one end surface of the LNG cylinder 1, the gas return port is arranged at the upper part of the LNG cylinder 1, and the first liquid outlet and the second liquid outlet are both arranged at the lower part of the LNG cylinder 1; the self-pressurization system comprises an air supply pipeline 2 and a self-pressurization pipeline; one end of the air supply pipeline 2 is connected with the first liquid outlet, and the other end of the air supply pipeline 2 is connected with an air inlet of an engine 3 of the heavy truck;
the self-pressurization pipeline comprises a first pressurization pipe 4, a finned pipe 5 and a second pressurization pipe 6 which are sequentially connected, one end of the first pressurization pipe 4 is connected with the second liquid outlet, and one end of the second pressurization pipe 6 is connected with the air return port; the middle part of the second booster pipe 6 is provided with a booster pump 7; a pressure measuring branch pipe 8 is further arranged on the second pressure increasing pipe 6 close to the air return port, a pressure sensor 9 for detecting the pressure of the gas in the second pressure increasing pipe 6 is arranged on the pressure measuring branch pipe 8, and the pressure sensor 9 is electrically connected with a control part of the pressure increasing pump 7; the finned tube 5 is used for vaporizing liquid LNG flowing through the finned tube; the booster pump 7 can connect or disconnect the air passage of the second booster pipe 6, and can quickly pump the gas in the second booster pipe 6 back into the LNG gas cylinder 1.
The self-pressurization system further comprises a connecting pipe 10, wherein an air inlet end of the connecting pipe 10 is connected with the second pressurization pipe 6, an air outlet end of the connecting pipe 10 is connected with the air supply pipeline 2, the air inlet end is arranged near the air return port, and the air outlet end is arranged near the first liquid outlet; the middle part of the connecting pipe 10 is provided with a single-phase pressure valve 11. When the air pressure in the LNG cylinder is higher and reaches a set value such as 1.0MPa, the single-phase pressure valve 11 is opened, the fuel gas in the LNG cylinder directly enters the gas supply pipeline for the engine to use at the moment, the purpose of reducing and recovering the normal pressure in the LNG cylinder is achieved, and the LNG cylinder is in an economic working state.
The first pressure increasing pipe 4 is also provided with a pressure regulating valve 12 for regulating the pressure increasing speed of the pressure increasing system.
The first pressure increasing pipe 4 is provided with a first stop valve 13, the second pressure increasing pipe 6 is provided with a second stop valve 14, the first stop valve 13 is close to the second liquid outlet, and the second stop valve 14 is close to the return air inlet. The two stop valves are used for being isolated from the LNG gas cylinder when parts on the self-pressurization pipeline are replaced or maintained.
And the second pressure increasing pipe 6 is also provided with a safety valve 15 for releasing pressure to ensure the safety of the system when the pressure of the gas cylinder in the LNG exceeds the upper line.
When the pressure regulating valve is used, the first stop valve and the second stop valve are opened, and the pressure regulating valve is regulated to a proper value.
Claims (6)
1. The utility model provides a heavy LNG gas cylinder's for card self-pressurization system which characterized in that: an air return port, a first liquid outlet and a second liquid outlet are arranged on one end face of the LNG cylinder (1), the air return port is arranged at the upper part of the LNG cylinder (1), and the first liquid outlet and the second liquid outlet are both arranged at the lower part of the LNG cylinder (1); the self-pressurization system comprises an air supply pipeline (2) and a self-pressurization pipeline; one end of the air supply pipeline (2) is connected with the first liquid outlet, and the other end of the air supply pipeline (2) is connected with an air inlet of an engine (3) of the heavy truck; the self-pressurization pipeline comprises a first pressurization pipe (4), a finned pipe (5) and a second pressurization pipe (6) which are sequentially connected, one end of the first pressurization pipe (4) is connected with the second liquid outlet, and one end of the second pressurization pipe (6) is connected with the air return port; the middle part of the second booster pipe (6) is provided with a booster pump (7); a pressure measuring branch pipe (8) is further arranged on the second pressure increasing pipe (6) close to the air return port, a pressure sensor (9) used for detecting the pressure of the gas in the second pressure increasing pipe (6) is arranged on the pressure measuring branch pipe (8), and the pressure sensor (9) is electrically connected with a control part of the pressure increasing pump (7); the finned tube (5) is used for gasifying the liquid LNG flowing through the finned tube; the booster pump (7) can connect or disconnect the air passage of the second booster pipe (6), and can quickly pump the gas in the second booster pipe (6) back to the LNG gas cylinder (1).
2. The self-pressurization system of LNG cylinders for heavy trucks according to claim 1, characterized in that: the self-pressurization system further comprises a connecting pipe (10), wherein the air inlet end of the connecting pipe (10) is connected with the second pressurization pipe (6), the air outlet end of the connecting pipe (10) is connected with the air supply pipeline (2), the air inlet end is arranged near the air return opening, and the air outlet end is arranged near the first liquid outlet; the middle part of the connecting pipe (10) is provided with a single-phase pressure valve (11).
3. The self-pressurization system of the LNG cylinder for the heavy truck according to claim 1 or 2, characterized in that: and the first pressure increasing pipe (4) is also provided with a pressure regulating valve (12).
4. The self-pressurization system of the LNG cylinder for the heavy truck according to claim 1 or 2, characterized in that: the first pressure increasing pipe (4) is provided with a first stop valve (13), the second pressure increasing pipe (6) is provided with a second stop valve (14), the first stop valve (13) is close to the second liquid outlet, and the second stop valve (14) is close to the return air inlet.
5. The self-pressurization system of the LNG cylinder for the heavy truck according to claim 3, wherein: the first pressure increasing pipe (4) is provided with a first stop valve (13), the second pressure increasing pipe (6) is provided with a second stop valve (14), the first stop valve (13) is close to the second liquid outlet, and the second stop valve (14) is close to the return air inlet.
6. The self-pressurization system of the LNG cylinder for the heavy truck according to claim 1 or 2, characterized in that: and a safety valve (15) is also arranged on the second pressure increasing pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020847681.6U CN212359971U (en) | 2020-05-20 | 2020-05-20 | Heavy LNG gas cylinder's for card from turbocharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020847681.6U CN212359971U (en) | 2020-05-20 | 2020-05-20 | Heavy LNG gas cylinder's for card from turbocharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359971U true CN212359971U (en) | 2021-01-15 |
Family
ID=74148884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020847681.6U Expired - Fee Related CN212359971U (en) | 2020-05-20 | 2020-05-20 | Heavy LNG gas cylinder's for card from turbocharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405854A (en) * | 2022-08-25 | 2022-11-29 | 深圳中广核工程设计有限公司 | Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline |
-
2020
- 2020-05-20 CN CN202020847681.6U patent/CN212359971U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405854A (en) * | 2022-08-25 | 2022-11-29 | 深圳中广核工程设计有限公司 | Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline |
| CN115405854B (en) * | 2022-08-25 | 2024-05-10 | 深圳中广核工程设计有限公司 | System and method for controlling pressure of liquid nitrogen storage tank and nitrogen distribution pipeline |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |